389results about How to "Easy to understand technical content" patented technology

The invention relates to a control device of cool medium recycling quality for multi-connected air conditioner and the control method. The device comprises adjusting device for cool medium quality, electromagnetic valve, electronic expansion valve, suction temperature sensor and pressure sensor of low pressure. The adjusting device is connected to the position between condensator and electronic expansion device by main pipe and in the cavity branching pipe is set on. On the branching pipe electromagnetic valve is set in series. One branching pipe is connected with the drainage pipe of compressor and the other is connected with suction pipe. The suction pipe of compressor is connected with the pressure sensor of low pressure and suction temperature sensor. When the system runs normally, the electronic expansion valve is adjusted to control the quality of cool medium. When the opening degree of electronic expansion valve is over the range, the electromagnetic valve is adjusted to control the quality of cool medium again. In this way residual cool medium in the device is recycled to the system so as to take part in running newly and the cycling quality of cool medium is controlled in time under any condition.

The present invention discloses a touch apparatus integrating a pressure-sensing function. A display module is disposed at the bottom of the touch apparatus; a touch module and a cover body are disposed above the display module; the touch module is located on a conducting layer on the surface of the display module and is connected to the display module; a gap is formed between the touch module and the display module; the cover body is connected to and covers the touch module; when external touch force is applied to the cover body, the touch module bends in a force application direction of the external force due to the pressure, so that the change of the gap can lead to corresponding change of the capacitance and the pressure; and a specific frequency signal is configured for the display module and can distinguish the capacitance between the touch module and the display module, changed by the external force, and the pressure on the cover body and the touch module. According to the apparatus provided by the present invention, the pressure is sensed by using the change of the gap distance, and it is easier for the specific frequency signal in the display module to distinguish the external force such as finger clicking, and the pressure sensed capacitance.

The invention provides an obstacle detection alarm system and method. An interest interval is set through an image processing technology to further judge whether a horizontal line signal exists, and the obstacle of certain height is detected according to the detection of obstacle profile and estimation of the distance between obstacles at a ground interval; if the system detects that the obstacleexists, the system can provide an timely alarm and display the obstacle distance through an alarm device; and an environment picture can be displayed by use of an image type obstacle detection alarm system in combination of the alarm device so that a driver can directly and clearly see the relative position relationship of the environment and the convenience and safety are enhanced.

The invention discloses a circuit and a method for short-circuit protection of light-emitting diode (LED) lightbars. At least one LED lightbar is taken as a backlight source; each lightbar consists of a plurality of LEDs; furthermore, the LED lightbar is driven and provided by a control unit; a short circuit protection unit can protect the LED lightbar; and the short circuit protection unit is electrically connected with two ends of the LEDs of the LED lightbar so as to obtain the measured voltage, thus judging whether the short circuit of the LED occurs according to the measured voltage and a forward benchmark voltage. As the circuit and the method can dynamically adjust the forward benchmark voltage of the protection voltage and avoid the mistaken judgment, thus avoiding the circuit from being burned more effectively.

The invention provides a system and a method for determining an obstacle by using aerial view images, relates to technology for determining the obstacle around a vehicle by aerial view image technology. A plurality of image acquisition devices which are arranged at different positions are used for acquiring a plurality of images around a vehicle body respectively, and the plurality of images are at least provided with an overlapping region; an image processor performs independent aerial view image conversion on the images; and an obstacle calculating unit compares the correlation of repeat regions of two independent aerial view images and judges whether the obstacle exists or not according to the size of the correlation. In addition, a mapping table of a group of space conversion data is constructed and comprises driving state data such as the steering wheel angle, gear or speed of the vehicle, and the like, so when the driving state is changed, a panoramic aerial view image at an appropriate viewing angle is quickly converted through the mapping table, and the position of the obstacle measured by the obstacle calculating unit is marked on the panoramic aerial view image; therefore, the safe driving of a user is facilitated.

The invention relates to a head up display device. The head up display device comprises a reflection frame and a concave imaging mirror frame; a reflector is arranged on the reflection frame provided with an accommodation space, and a display is arranged in the accommodation space and corresponds to the reflector to enable reflection of a solid image of the display so as to generate a reflection image; a concave imaging mirror is arranged on the concave imaging mirror frame, one surface of the concave imaging mirror is provided with an anti-reflection coating, and the other surface of the concave imaging mirror is provided with a semi-permeable coating for receiving the reflection image of the reflector to display a magnified distant virtual image. Therefore, the head up display device has the advantages that the device is small in space occupancy and does not need to be set up in a vehicle-machine system in a vehicle, an existing display device can be applied directly for generating the magnified distant virtual image, and the device is easy for users to mount and use by themselves.

The invention provides an automatic correction method for a vehicle display system and a system thereof. The method comprises the following steps: converting an image of a road ahead into projection information; calculating a coordinate model; detecting the facial feature of a driver; calculating a facial deflection angle and a facial feature three-dimensional position of the driver accordingly to estimate a visual field position of the driver looking in front; bringing the visual field position into an image overlapping projection conversion formula to generate an overlapping error correction parameter value; correcting and updating the coordinate model by using the overlapping error correction parameter value; projecting the corrected coordinate model in front of the driver by using a display unit to overlap the projection position of the coordinate model with the visual field position of the driver.

The invention provides a vehicle image display system and a correction method thereof. The automobile image display system is arranged on a vehicle to display images, can read at least one image of a road ahead, can obtain the positions of lane lines and obstacles ahead according to the image of the road ahead, and can work out display projection information which can be superposed with the positions of lane lines and obstacles ahead on an actual lane after correction is conducted. The focal distance conversion or the dip angle of a projection unit or the dip angle of a visual flat panel can be adjusted by using a motor control unit, so as to generate a superposition error correction value to correct the display projection information. In combination with hardware adjustment and software correction, large-area display projection information which is fully superposed with actual road images can be projected onto the visual flat panel or a windscreen of the vehicle by using the projection unit, a driver is enabled to obtain intuitive information of road conditions and the driving safety is further improved.

The invention provides a high-dynamic range image sensing circuit with adaptive conversion gain and a high-dynamic range image reading method. The high-dynamic range image sensing circuit comprises a variable capacitor. The capacitance value of the variable capacitor is adjusted according to sensed lightness or internal feedback control so as to adaptively adjust the conversion gain when a signal representing a pixel image sensed by an image sensing element is read. When signals are read per period, the signals within different dynamic ranges can be respectively read for more than two times so as to enhance the accuracy of the signals.

The invention discloses an optical fingerprint identification system, wherein the surface of a light guiding panel is used as a fingerprint sensing area for finger pressing; a collimating optical signal is supplied; the optical signal is introduced into the light guiding panel for transmission through an inner total reflection effect; total reflection of the optical signal in the light guiding panel is damaged by finger pressing; an optical sensing element can detect waveform change of the optical signal and performs processing for obtaining a fingerprint image. Therefore, when the optical fingerprint identification system is integrated in a display panel, the optical sensing element can be concealed at the back surface of the display panel; the optical sensing element does not require receiving the reflected light of the fingerprint, thereby preventing a penetration problem. Furthermore the fingerprint sensing area can be applied to the total or local area of the light guiding panel.Not only is more elastic use realized, but also aesthetic feeling requirement of a consumer to appearance of a product is satisfied.

Provided is an image identification method for inventory management and marketing. First, an image including a plurality of commodities is captured, and the commodities are compared with object information pre-stored in a database so as to detect, separate and identify the commodities in the image by use of an image identification technology. When a comparison result shows that one commodity is consistent with a piece of object information pre-stored in the database, the commodity and the object information consistent with the commodity can be stored in a data account of the database together, and the data account can be updated according to additional object information and added to the database, thus achieving the purpose of expanding the database and the data account. Second, the current position of a device of a user can be detected so as to display commodity information on the device of the user. A map can be displayed on the device of the user, the actual position of each commodity can be indicated by use of the map, and a better path from the current position of the user to the actual position of each commodity can be provided.

The invention discloses a real-time traffic sign control method of a group intersection and a method for predicting green time needed for dredging a vehicle stream at the intersection. The methods comprise the following steps of: distinguishing main vehicle stream paths at the group intersection, configuring the time phases of the main vehicle stream paths according to vehicle stream paths; and then, by virtue of a contour principle, setting at least one vehicle detector on each main vehicle stream path to detect the vehicle stop waiting conditions of the main vehicle stream paths; furthermore, obtaining various impact waves according to the vehicle stop waiting time conditions; further, predicting the green time needed by each vehicle stream path by means of an impact wave principle; and finally, optimally distributing the predicted needed green time so as to obtain the balanced green time of each main path.

The invention provides a head-up display device at least comprising an image display unit capable of generating one or more input images and a rotary mechanism, wherein at least one virtual image generating element is used for receiving the input images and generating at least one virtual image, and the rotary mechanism enables the virtual image generating element to change the projection angle of the virtual image so that the virtual image is projected to a plurality of perspective plane mirrors and correspondingly received and the virtual image of a large area is formed through reflection. The head-up display device can directly reduce the size of a lens or an optical element of a mirror, is miniaturized but has a large image display range. A required carrier information image is totally overlapped with an external image, and the problems that a single-light-path image display device is used in the past, images can only be displayed in a small area, and the images can not be displayed in a large area are solved.

The present invention discloses an automatic voltage adjusting backlight control circuit, which comprises a voltage supply circuit, a plurality of nodes and a high-low circuit comparing mu-circuit. The voltage supply circuit receives an input voltage and is controlled by a control signal and produces an output voltage; the voltage of each node represents the current value in a corresponding luminescent component path; the high-low circuit comparing mu-circuit can produce the control signal according to the voltage difference between a plurality of nodes. The present invention provides an automatic dynamic state adjusting balance mechanism. The backlight control circuit can automatically adjust and reduce an output voltage Vout until the difference between the highest voltage and the lowest voltage is equal to the preset valve. With the present invention, the object of energy saving is realized and the problem that a reference voltage Vref value is difficult to be artificially set is avoided.

The invention provides a solid state drive (SSD) device including a printed-circuit board assembly (PCBA), a connector mounted on the circuit board, an open-frame support-type housing including first and second parallel elongated brackets extending along opposing peripheral edges of said circuit board, each bracket including a first connecting structure for securing the circuit board to the housing, and a second connecting structure for connecting the housing to an internal rack frame of a host system. The open-frame support type housing does not include a top cover and a bottom cover, whereby both of said opposing first and second surfaces are exposed by first and second openings. The housing includes optional end rails that form a box-like frame. The elongated brackets are formed using die-cast metal, stamped metal, or molded plastic with copper posts. Optional clamp-type brackets clamp along side edges of the PCBA.

The invention provides a low-pollution device for condensing, accumulating heat and incinerating, which comprises a zeolite rotating wheel, a heat accumulating type incinerator, a pipeline group and a recycling pipeline group. The zeolite rotating wheel is used for condensing waste gas; the heat accumulating type incinerator can be used for combusting the waste gas; the pipeline group comprises a pipe fitting group communicated with the zeolite rotating wheel, the heat accumulating type incinerator and a discharge chimney, and a valve group for controlling circulation of internal gas in the pipe group; and the recycling pipeline group is connected with the pipeline group to assist recycling of the discharged waste gas. The device utilizes self differential pressure power to recycle and treat high VOC-concentration waste gas discharged when valve members are switched, so as to achieve the effects of improving treating efficiency of the waste gas and reducing environmental pollution.

The invention provides a moving-object-traceable anti-collision warning method and a device thereof. The device is arranged on a vehicle, a plurality of continuous images in 180 degrees of a front area are captured, at least one kind of obstacles among the continuous images is recognized through the images, and dynamic obstacles are found out; continuous relative positions of the dynamic obstacles and the vehicle are detected, and a first collision area of the vehicle is estimated; a second collision area of the dynamic obstacles is estimated according to the continuous relative positions and an extended kalman filtering algorithm; finally, a first collision point is estimated according to the first collision area and the second collision area, when the first collision area and the second collision area are at least partially overlapped, collision time is estimated, and a warning signal is output to warn a driver so as to improve driving safety.

The invention discloses a touch panel and a manufacturing method thereof. Different from a method of printing a black matrix on a cover glass by monolithic printing and then abutting the cover glass with a touch sensing structure, a method of using a yellow light lithography process is provided to replace the method, a black matrix photoresist is used to directly make a shading layer on the touch sensing structure, to cover a conductive circuit of a frame region. Then concave positions of the shading layer, exposed out of a sensing region are filled by a filling layer, and height of the filling layer is flushed with height of the shading layer. The touch panel can prevent fitting bubbles generated by printing segment difference, defects on appearance of the panel are reduced. Since the yellow light lithography process can make thickness of the shading layer reduce, touch efficacy is improved. the touch panel can be matched with multi-layout design, and capacity is greatly improved.

The invention provides a dual-vision preceding vehicle safety attention device and method. The dual-vision preceding vehicle safety attention device comprises an image capturing unit, a vehicle body signal sensing unit, an image processing unit, a system attention judging logic and at least one attention unit, wherein the image capturing unit comprising at least two photographic devices is arranged on a vehicle so as to capture an image on a road ahead environment, then the image processing unit is used for processing the image and calculating the distance from the vehicle and a preceding vehicle in the image by matching with a vehicle body signal sensed by the vehicle body signal sensing unit, when the vehicle deviates a driveway or is in an over-short distance with the preceding vehicle, the system attention judging logic sends out a control signal to the attention unit so as to drive the attention unit to send out an attention signal through sound, lighting and other effects and towarn the driver of the vehicle.

The invention relates to a power supply circuit for improving transient variation reaction, a control circuit and a method thereof. The power supply circuit for improving transient variation reaction comprises a power level circuit, an error amplifier, an input voltage transient variation extraction circuit and a pulse width modulation (PWM) comparator, wherein the power level circuit comprises at least one power transistor switch, an input voltage is converted into an output voltage by the switching of the power transistor switch; the error amplifier is used for comparing a feedback signal related with the output voltage with a reference signal to generate an error amplifying signal; the input voltage transient variation extraction circuit is used for extracting transient variation of the input voltage and generating a signal related with the transient variation; and the PWM comparator at least generates a PWM signal according to a saw wave signal, the error amplifying signal and the signal related with the transient variation so as to control the power transistor switch in the power level circuit.

The method includes steps: the picture taken by fish-eye lens is as original image; multiple coordinates of correction points (CCP) are obtained from the original image; estimating actual coordinates of actual plane from CCP; using CCP and actual coordinates calculate a set of parameter of image distortion; using CCP calculates out rearranged coordinates and outputting image of corrected image in order to build image correction relation table of coincidence relation between original image and coordinates of each position in the output image. Using implied functions of interpolation and resetting magnitude, the table corrects fish-eye distorted image better and rapidly in real time. When applying image correction relation table on hardware platform, the method uses interpolation function in table, and operational method in the invention to reduce calculation amount of digital signal processor greatly, obtain optimal corrected output result.

The invention comprises the following steps: first, connecting in series with an electronic expansion valve on the condenser tubule of each compressor, connecting a low-pressure pressure transducer on the air intake duct and then making the parallel between each electronic expansion valve. When the machine set enters oil-balancing process, the enough differential pressure formed by the pressure between oil cavities of compressors impels the freezing oil to flow directly into the low-pressure compressor to realize the oil balance by regulating the aperture of each electronic expansion valve in the compressor system.

A system of using mobile terminal to carry out mobile office work is prepared as detecting out new event and sending it to mobile terminal by mobile office work module when new event is occurred on office automation server, prompting user to concern new event by mobile terminal and utilizing the propelling technology to carry out work, transmitting operation result of user back to mobile office work module through radio network by mobile terminal and updating office automation server for finalizing office work flow process assigned by user.

The invention relates to a method for producing a combination type frame applied to a flat panel display, which comprises the following steps: a plurality of stamping materials are aligned and assembled on a pressing stamping table of a stamping unit; at least one preset welding area is formed among the stamping materials; at least one welding unit is used for welding the preset welding area; the stamping unit is used for thrusting the stamping materials so as to form the combination type frame formed by welding a plurality of components. Meanwhile, the invention also discloses stamping equipment for applying the producing method. The producing method and the stamping equipment can produce the combination type frame relatively fast.

The invention discloses a detection system of a road lane line and a method for the same. The system comprises image capture equipment used to capture image frame data in front of a vehicle and transmit the image frame data to a processing device. Multiple feature values converted by one or two road lane lines are gradually obtained from the part under the image frame data to the upper position; the feature values are processed by the processing device, so one or two predicted road lane lines can be generated in the image frame data; then, the predicted road lane lines are used to dynamically predict a complete road lane line in the image frame data, so that a road lane line prediction model is formed; the processing device transmits the image frame data and the road lane line prediction model to display equipment for display; and when the vehicle deviates, the display equipment will send alarms. According to the invention, identification effect of fuzzy, single and far road lane lines can be enhanced.

The invention provides a foot stand with the lamp effect. The foot stand comprises a foot stand main body, a light source, a fixed bracket and a controller. The light source is arranged on the foot stand main body or the fixed bracket. The foot stand can directly emit light to form the lamp effect or is further provided with a light guide medium for the light source to irradiate the light guide medium to generate different lamp effects. Meanwhile, the on-off, the brightness and the color changes of the light source are controlled by the controller, so that various static or dynamic lamp effects can be achieved under the condition that the normal function of the foot stand is not influenced.

The invention discloses an inflatable brainwave-measuring device comprising an inflatable cap that can be put on the head of a tested user and at least one sensing electrode. The inflatable cap is equipped with multiple support bars. The sensing electrode is arranged on the support bars. Inflated, the inflatable cap drives the sensing electrode to cling to the head of the tested user in order to measure the brainwaves of the tested user. In virtue of the inflatable design of the inflatable cap, the inflatable brainwave-measuring device can be widely applied to measurement of different head sizes and has extremely good development potential and industrial applicability.

The invention discloses a device and a method for detecting a heat-dissipating plate. The device for detecting the heat-dissipating plate comprises a detecting platform, a heat source, a heat sink device and a data recorder, wherein the detecting platform is provided with a heat conductor; the heat source provides heat energy and is contacted with the heat conductor; the heat sink device is contacted with the heat conductor and removes the heat from the heat conductor rapidly; the data recorder comprises an infrared thermal imaging system and a calculating device; and the data recorder is used for acquiring and analyzing temperature data and can detect the heat flux of the heat conductor accurately and rapidly. The invention also provides the method for detecting the heat-dissipating plate; a mechanism for rapidly detecting the yield of the heat conductors is established so as to improve the yield of products more accurately; and the device and the method are suitable for the detection of mass production.

The invention discloses a conversion device which comprises a high side metal oxide semiconductor field effect transistor (MOSFET) chip provided with a first high side source which is connected to a low side drain of a low side metal oxide semiconductor field effect transistor chip. The conversion device also comprises a transient reverse current transfer circuit which is connected to a drain of a low side metal oxide semiconductor field effect transistor chip to transfer a reverse transient current so as to transfer a reverse transient current passing through one body diode of the low side metal oxide semiconductor field effect transistor chip when the low side metal oxide semiconductor field effect transistor chip is closed, and to reduce the vibration of transient ringing. The reverse transient current transfer circuit comprises a diode which is used to guide a reverse transient current from the drain. The reverse transient transfer circuit also comprises a capacitor which is connected between the diode and the low side metal oxide semiconductor field effect transistor chip.

The invention relates to a field order type liquid crystal display device and a driving method of the device, when lightening a light source, reading-in color data and driving all the pixels on the liquid crystal display device to a specific gray scale. The displayed original color can be orderly alternated in turn at least with the three colors of red, green and blue, and the time of reading-in the original color data is the same with that of the specific gray scale, thereby a backlight module can eliminate the time of liquid crystal reflection during the display process, and the control of the original color data read-in and the driving of the specific gray scale can be executed by the same control IC.